How To Fix CNV_20309001 - There is no reference data from previous test conversion

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20309 -

• Message number: 001

• Message text: There is no reference data from previous test conversion

If no reference data from a previous test conversion exists, the reason
may be either that the step for saving package data has been skipped in
the previous test conversion (which is not recommended) or that this is
the first test conversion for this project and system.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20309001 - There is no reference data from previous test conversion ?

  The SAP error message CNV_20309001 indicates that there is no reference data available from a previous test conversion. This error typically occurs during the data migration or conversion process, particularly when using SAP's Conversion Tools or during the SAP S/4HANA migration process.
  Cause:
  
  No Previous Test Conversion: The most straightforward cause is that there has not been a prior test conversion executed, which would provide the necessary reference data for the current conversion.
  Data Not Saved: If a previous test conversion was performed but the data was not saved or properly recorded, the system will not have access to that reference data.
  Configuration Issues: There may be configuration issues in the conversion settings that prevent the system from accessing or recognizing the reference data.
  System Environment: The environment in which the conversion is being executed may not have the necessary data or configurations set up.
  
  Solution:
  
  Perform a Test Conversion: If you have not yet performed a test conversion, you should do so. This will generate the necessary reference data for future conversions.
  Check Previous Conversions: If you have performed a test conversion, ensure that the data was saved correctly. You may need to check the logs or the database to confirm that the reference data exists.
  Review Configuration: Go through the configuration settings for the conversion process to ensure that everything is set up correctly. This includes checking the parameters and options selected for the conversion.
  Consult Documentation: Refer to the SAP documentation related to the specific conversion tool you are using. There may be specific steps or prerequisites that need to be followed.
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for assistance. They can provide more detailed guidance based on your specific system configuration and the context of the error.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Cockpit: If you are using the SAP S/4HANA Migration Cockpit, ensure that you are following the recommended procedures for data migration.
  Data Migration Best Practices: Familiarize yourself with best practices for data migration in SAP, which can help prevent issues like this in the future.
  
  By following these steps, you should be able to resolve the error CNV_20309001 and successfully proceed with your data conversion or migration process.